Apparatus for preparing drum head can bodies



Jan. 26, 1932. D|$TER 1,842,447

APPARATUS FOR PREPARING DRUM HEAD CAN BODIES Filed Feb. 15, 1929 a Sheets-Sheet 1 I ulljl K FL: m @3233 Q;

1%: Mm imw'maL,

INVENTOR I ATTORNEY Jan. 26, 1932 F.-P. DISTER 1,842,447

' APPARATUS FOR PREPARING DRUM HEAD CAN BODIES Filed Feb. 13, 1929 v 6 Sheets-Sheet 2 N N N ATTORNEY 6 Sheets-Sheet 3 F. P. DISTER APPARATUS FOR PREPARING DRUM HEAD CAN BODIES Filed Feb. 13,

Jan; 26, 1932.

F? g :H

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M "III ATTORNEY WK 44 .4, m

Jan. 26, 1932. F. P. DISTER I APPARATUS FOR PREPARING DRUM HEAD CAN BODIES 1929 6 Sheets-Sheet 4 Filed Feb. 13

INVENTOR 9149 x/Mid WAW ATTORNEY Jan. 26, 1932. v DISTER 1,842,447

APPARATUS FOR PREPARING DRUM HEAD CAN BQDIES Filed Feb. 13, 1929 6 Sheets-Sheet 5 W1 milw I I ll I v INVENTOR I ma: in!

ATTORNEY Jan. 26, 1932. v b s 1,842,447

PPARATUS FOR PREPARING DRUM HEAD CAN BODIES Filed Feb. 15, 1929 e Sheets-Sneet s INVENTOR fq V J, Ma an ATTORNEY 4 lmllihh f i d m-mm FREDlfl Ii T-E Bi H m o ,iOfiIOiQlQSfiIGNOB rro-Amnmcnn can CQMPANX, or i roan, n. Y., (A CORPORATION or new JERSEY Patented James, 1932 i fhmhaflde roe rnnranme neon emu) can ome TBS;

Application ma- February 13, 1929. Serial No. 339,503."

This invention relates to anapparatus for providing a cylindrical can body with a sup porting: shoulder, assembling a drum head within the can body and against the shoulder and curlingtheiedgeof the body to hold the drum head in position,

\ The usual type of drnm headcan adapted tobe produced by the 'apparatusoftlie present-invention comprises a metallic cylindrical m can body having abottom or end member and a. frangible drum head-forming'a seal for the topof the can. A snpplem'entalcover of the frictionforfthe slip" cover type is usually used in connection with the sealeddrumhead P151 and forms a protection for the drum head prior to its being cut out in the first opening of" the can after which this supplemental cover :providesa'reclosure. The apparatus of the present-invention relates to forming the drum head" seal in one end of the can body and flanging:itsoppositeend for theireception of the bottom or-"end member;

FThe principalobject of the present invention is the provision of an apparatus'for first preparing an annularcan body for-thereeeptionof drum head, and second, positioningand securing the drum headwithin oneend ofthebodyg t a t Another important object of theinvention is the. provision of drum head, inserting mechanism whiohmeceives 'a drum head in proper alignment witha can body and. which insertion. I q

isthe provision of an apparatus for moving successive. can bodies in one general direction or line of travel and performing variousioperations on each succeeding can body as it is conveyed through the machine. 1

Numerous other objects and advantages of the inventionwill be apparent as itis better Q, nnderstoodfrom. the following description,

which, taken connection; with the accomholds thejsame in aligned position during its 3Stillanother important object oflthe in- I mechanism, the view panying drawings, disolosesja preferred embodiment thereof.

. Referring to thejdrawings: i j y Figure lis arrearelevation *ofthe appa rat-us, parts being omitted 5' i y Egg. 2 is an end elevation of the the view being taken of the end of the machine containing the mechanism for oper:

atingupon the top section of the can body;

Fig.

3 is a front elevation of the appara s;

Fig. tis an end elevation, the'view being taken of the end of the machine containing the mechanism for operating upon the bottom section of the can body;

Fig. 5 is a longitudinalcentralsectional View of the apparatus, being takenisubstantially along line 5-5. of Fig. 2;

Fig. 6 is a transverse section taken substantially along line 66 of Fig. 1; I

. Fig. 7 is a transverse section,ltaken,substantially along line 7-7 of Fig. 1, parts being broken away Fig. Sis atransverse fragmentary section, taken along line 8-8 of Fig. l;

apparatus,

Fig, 9isatransverse fragmentarysect on,

taken .alongline 9-9 of Fig; 1; y

Fig; 10 is a transverse fragmentary section, taken. substantially along line 10.1O of Fig.1 i I *Fig. 11 is an enlarged longitudinal sectional view of the supporting shoulder forming and can body flanging mechanisms, parts being brokenavvay; V Fig. 12 is an enlarged longitudinal sectional view of the drum head inserting and securing. mechanism, parts being shown in elevation and parts being brokenaway; Fig; 13 is. afview similar to Fig. 12 showa ing the drumhead inserting and securing mechanism in a different position relative to the can body, and y p Fig-1 lis an enlarged detail in elevation of the drum' head inserting and securing being taken at right angles to Fig. 13..

In the machine disclosed in the drawings.

annular non-fiangedcan bodies are received ing turret, this turret constituting a can body carried. The turret conveys each can body, in a step by step movement, through an idle station and brings it to rest at the first operating station. While in this station,both ends of the can body are simul taneously engagedby operating mechanism.

A supporting shoulder is formed on the top end. of the can body by a mechanism comprising a heading head'carrying an out side beading roller or hollow cup member which moves over the top end of the body, and an inside beading roller which moves into the top end of the can body; Bot-h rollers rotate during the shoulder forming operation, the axes of the rollers atsuch a,

rollers rotate during the flangin operation,

the axes of the rollers at such time moving eccentrically to each other and clamping the can body wall at a point of tangency between peripheral flanging surfaces formed onthe rollers.

Beading and, flanging heads are then separated releasing the can body which is thereupon moved by the turret to the next station. At this station, a drum headis i11- serted within the shouldered top end of the can body and islsecured therein,

A frangible drum head, which may be a flat disc as illustrated in the'drawings, is brought into'the machine on a horizontal chain conveyor and is projected into a verticalchute carried by an inserting and securing head located at the second station. The

disc is retained in the chute until the head is in proper position to receive it at which tune it is released, and fallinginto a pocket comes to rest, within holding fingers carried by the head. The discis thereby held in a vertical position and in axial alignment with the can body. c

The inserting and securing head, which is carried on a sliding, non-rotating shaft, then moves over the top end of the positioned can body, and a rotating backing head carried on asliding rotating shaft moves into engagement with the'bottom end of the body. The can body is thereby clamped between the two heads and the disc-is forced into the top end of the body. The can body rotates with the rotating backing head, and the upper edge thereof engaging curling rollers carried by the inserting and securing head is bent over into an annular curl which presses against the drum head, securing it between the curl and the shoulder of the can body. The two heads thereupon separate, freeing the can body and permitting it to be moved with the next movement of the turret, which movement discharges it from the machine.

, The various parts of the apparatus are carried by a bed 21 mounted upon supporting legs 22 (see Figs. 1 to 6 inclusive). Most of the shafts andother operating parts o the machine aresupported above the bed, there being provided for this purpose an end bracket 23, a central supporting frame 24 and an end supporting frame 25, all carried upon the bed 21.

Annular can bodies A, which may be cylindrical as illustrated in the drawings, are conveyed to the machine by a usual type of chute 26 which may consist of spaced angle irons. The lowermost pair of angle irons or rails 27 are curved at their bottom extremities to form a passageway for the can bodies as they are conveyed to the first operating station. The lower ends'of rails 27 are connected by a tiebar' 28 (Figs. 1 and 6) connecting the spaced rails 27 and being secured to a circular guide rail 29 properly supported in any usual manner and forming a continuation of the passageway for the can bodies passing through the operating stations. The can body A moves by gravity into a pocket 31 of a turret 32 secured to one end of a horizontal shaft 33 rotating in a bearing 34 formed in frame 24 and in a bearing 35 formed in the bracket 23 (Fig.

The turret 32 is intermittently rotated in a step. by step movement to carry the can bodies A from their received position through an idle'station and thence through the first and second operating stations, after which the can body is discharged into a discharge chute 36 (Figs. 1, 3 and 6).

Movement is imparted to turret 32 by a Geneva mechanism comprising a Geneva wheel 37 secured to shaft 33 and having the usual radial slots 38 (Figs. 4 and 5).

A horizontal shaft 39 rotates in a bearing 41 formed in bracket 23 and in a bearing 42 carried by the frame 24. Shaft 39 carries a Geneva arm 43 upon which is rotatably mounted a Geneva roller 44 which operates during part of the rotation of shaft 39 and arm 43 within the radial slots 38 to impart a step by step movement to shaft 33. Shaft 39 also carries a spur gear 45 which meshes with a similar gear 46-carried on a horizontal cam shaft 4'7 journalled in bearings 48 formed in frame 25 and in bearings 49 formed in frame 24. Shaft 47 also carries a spiral gear 51, which meshes with a worm 52 secured to a horizontal drive shaft 53 rotating in bearings 54 formed in a bracket 55 mounted on bed 21 and in a bearing 56 formed in a brack- I member 66. During the movement of the beading head over the end of the can body,

roller 61 is positioned concentrically with the hollow cup member 66, thisbeing illustrated in Fig. 11. After the washer 69 has engaged the can body, shaft 63 is slightly oscillated, this action forcing the roller 61 toward the inner wall of the ring 67. Roller 61 thereupon engages the inner diameter of the can body A and the groove 72 thereof forces the material of the can body wall against the annular ridge 71 of the ring 67 and causes that part. of the can body wall to conform to the shape of theridge 71 and the groove 72. With the parts held in this position, the constantly rotating cup member 66 and the ring 67 carried thereby cause the ridge 71 to carry the entire circumference of the can body A in a circular path of travel. This action, by reason of the cooperation of the roller 61, which rotates about the stud 62, forms an inwardly pressed bead or supporting shoulder B into the upper wall of the can body A. The resulting bead is il-- lustrated at the left hand side of the can body A, as illustrated in Fig; 13. V

Shaft 63 is oscillated to engage the roller 61 against the can body A by the following mechanism: As illustrated in Figs. 1, 2 and5,

the outer extremity of shaft 63 carries a pinion 93 which meshes with a gear segment 94 oscillating about a stud 95 carried in a bearing 96 formed in frame 25. The segment 94 is formed with an extension arm 97 to which is pivotally connected an adjustable connecting link 98 in turn pivoted to an arm of a bell crank lever 99. Bell crank lever 99 is pivoted about a fixed stud 101 carried by boss 102 formed in frame 25. An arm'103 of hell crank lever 99 carries a cam following roller 104 which operates within'the groove of a face cam 105 secured to the shaft 47.

Oscillation of shaft 63 is thus cam conrolled to move the roller 61'relative to ring 67 carried by the hollow cup member 66. The pinion 93, being secured to the shaft 63 beyond the end of sleeve 64-, confines the latter between the disc part 8 1 of shaft 63 and the pinion 93. Sliding of sleeve 6-1 by the mechanism just described in either direction, therefore, causes corresponding movement of the shaft 63.

The flanging mechanism comprises an inner roller 106 mounted on a stud 107 eccentrically secured to the end of a shaft 108 journalled in a sleeve 109 rotatable within a shell 111. A hollow cup member, operating as an integral flanging roller 112, is threaded to the shell 111 and extends beyond the end of the same. These parts constitute the flanging head which is spaced from the positioned can body A when the latter. is brought to rest by the turret 32. In the annular opening formed in the outer part of shell 112, there is disposed a ring113 secured to the member 112 by means of screws 114 passing through'a hardened steel washer 115 mounted adjacent to theroller 106. The ring 113 is formed with an annular groove 116 adapted to cooperate during the fianging operation with an annular ridge 117 formed on the roller 106.

The Hanging roller 106 is associated with a can body gripping device (illustrated on the right hand side of Fig.11). Stud 107 of shaft 108 carries a bushing 118' within the flanging roller 106. Stud 107 is connected with shaft 108 by means of a spacer disc 119 positioned on the inside of and spaced from the washer 115. Stud 107 is also provided with an enlarged head 121 which retains the bushing in rotative position. A retaining cap 122 is positioned over the bushing 118 and is secured to the Hanging roller 106 by screws 123, which pass through a rubber disc washer 124 confined within-a knock-off ring 125 slidingly held between cap 122 and flanging roller 106. In the normal position of the parts just described, which position is illustrated in Fig. 11. the knock-off ring 125 is held concentric with cap 122 and flanging roller 106 by means of the rubber washer 124, the outer peripheral edge of the knock-off ring 125 1 extending beyond the peripheral edge of the fianging roller 106. The parts are in this position when the flanging head is inserted over the bottom end of can body A. The various steps in the operation of these parts during the fianging operation and immediately following will. be described hereinafter.

The flanging head is both rotatable and slidable, the sliding action positioning the head over the bottom end of the can body at the same time that the beading head is positioned over the top end. Shell 111 carrying the hollow cup member 112 is rotatable about sleeve 109. Shaft 108 is moved bodily back and forth with the longitudinal movement of shell 111 and also has slight oscillation within sleeve 109. These devices and the movements imparted to the various parts thereof are similar in every way to the de vices and movements of the shoulder forming mechanism. The devices for rotating the flanging head and sliding it into operating position will now be described.

Shell 111 has sliding and rotating move ment within a bearing 120 formed in frame 24 (Figs. 1 and 5). Rotation is imparted to shell 111 and cup member 112 by a gear connection comprising a gear 126 secured to the extremity of shell 111 and meshing with a gear 127 loosely mounted on a sleeve 128 keyed to shaft 47 and positioned between bearings 19 of frame 24. Gear 127 in turn mesheskwith a gear 129 secured to the hori zontal shaft 7 8. a i

,1 .The face of gear 127 iswider than the face of gear126and this permits the slidingmovement of j shell 111, without disengaging the gears 126 and 127. Shaftl08ysleeve 109 and shell lll, far as their sliding action is concorned, are connectedas aunitr Shaft 108,

by means of spacer disc 119, prevents sliding movement in one direction between the parts 108, 109 and 111, F or example, shaft 108.

cannotbemovedtoward the right. (asviewed Y in Fig.11).by.reason ofthe engagement the disc 119 againstthe ends of the. sleeve 109 and the shell 1111. Relative sliding move-.-

ment in. the opposite 1 direction between the shelllllhnd"sleeve 109 is prevented by a collar 131 pinned to thesleeve109 beyond the extremity of the shell. 111 (Figs. 1 and,

Relative slidingmovementbetween.shaft 108 andsleeve 1091s prevented n asimllar manneryaswillbejhereinafter setforth. Q Sliding movementof the flang ng head s made by sliding sleeve 109. under can actlon.

[n this movement, sleeve 109 slideswithin a bearing 132 formed in frame 24, theop'posite endof the sleevebeing supported by the shell I 11 11111 its bearing 120. Sleeve 109, intermein bearings 138 formed in frame 24. By

diatebollar 131 and bearing 132, carries a clan'ip block 133 5 and9); Block 133 carries a cam following roller 134 operating in a cam groove 135 formed in a double barwe cam 136. keyed to sleeve .128 and therefore rotatingwith shaft 47. Clamp block 133 slides along a rock shaft 137 'journalled means ofthis sliding-jconnectionofplamp canbody, cup inember112 is concentric with- .00

' time.

block 138with shaft 137, the]formcr is pre- 1 vei ted from rotating relative tothegcenterof 4o sleeve 109 and this insures a proper holding it the cam .following roller l34 within the chmgrbovel135.

. Under the described connectiomitherefore, cam 'lg6fCOIlt1OlS the sl d ng movement of the Hanging-head and posltions it over the bottomend of can body A at the proper Sliding 11101 61118111) of sleeve 109 causes collar 131 carried thereby to strike against the. endofthe shell 111 and thus move thegfianging head bodily into the described position; a r ,As illustrated. inFig. 11, as hollow cup member 112" is broughtto its inner position 1 {this being the position illustrated) the same i is positioned over the righthand or bottom end ofthe can body .A, washer 115 at such time engagingtheend of thebody. Dur ng positioning of the flangin g head over the the other described parts ofthe head and this permits the flangingyroller 106 and its associated parts to move into the interior of the can body FA. After the washer115has en}. 1

gagedthe can body, shaft 108 is slightlyosc illated, this action forcingthering125 first into contact with the canbody wall andthen movingthe flanging roller 106 toward the inner wallofthering113. 'After engagement of the knock-off ring 125. with the can body wall, therubber washer 124 yields andpermfits radial sliding movement between the ring. andthe fianging roller 106. Roller 106 .i'orces the end of the canbody wall outwardly by engagement with its annular ridge 117, this action moving the material of the can bodywall the annular groove 116 of the rf g 113. This causes that part of the can bedy wall to conform to the shape of the ridge 11? and groove .116.

. With the parts heldqin this position, i the constantly rotating cup member 112 andthe ring 118 carried thereby cause the groove 116 to carry the entire circumference of the can 7 Q body A in a circular pathof travel. This action, {by reason ofthe cooperationof the hanging roller 106 .rotatingat thistime with thebushing 118 about the stud .107, formsan outwardly pressed flange G on the lower end of the can body A. The res'ulting flange is illustrated at theright hand sideof the can body A in Fig.12. Shaft 108 isoscillated to move the fiange roller 106 and .nected by means of an adjustable link 143 with one arm of abell crank lever1144 (see also Fig. 9) Bell crank lever 144 is pivoted about a shaft 145 carried by a bracket 146 formed in frame 24. Another arm 147 of bell crank lever 144 carries a cam following roller 148 which operateswithin the groove of a face cam 149 keyed, to the sleeve 128 and therefore rotating with the shaft 47.

Oscillation ofshaftg108 is thuscam controlled to move the.flanging roller 106 and parts-122and125relative to the canbody to perform the i flangingoperation just described. Opposite movementof shaft 108 withdraws the Hanging roller 106 from flanging position, whereupon the yielding washer .124 restores the knock-oflt ring 125 to central position, this action strippingthe can body A? from thefianging groove 116 and posi- Itioning the can centrally of the stud 107, this being the normal position. Pinion 139 being secured to shaft 108 just beyond the end of sleeve 109 confines the latter between thedisc part 119 of shaft 108 and the said pinion. 139. Sliding of sleeve 109 in either direction, therefore, causes a-corresponding movement of shaft 108.,

As illustrated in Fig. 11, the shoulder.

forming or heading head is providedwith do groove connection 154 with a split ring 155,

the halves of which are clamped together by bolts-156. The split ring 155'is secured to bearing 73 at the point 157 (Fig. 5). By means of this connection, split ring 155 is 'heldin afixed position at all times, and ring 154 to which pins 151 are secured rotates withinthe split ring 155. in unison with the rotation of the cup shaped member 66.

After the shoulder forming operation has been completed and the beading head is moved backwardly, member 66 moves over the. ends of the stripper pins151, these pins passing entirely through the slots 152 and also through slots 158 formed in the washer 69. vThe upperend of can body A, which has a tendency to be carried backwardly with the beading head, strikes against the forward ends of pins 151 and is prevented from further movement while the beading head is further withdrawn from the said can body. At the same time, the flanging head has been withdrawn from the opposite end of the can body. The can body is then in position to be moved by the turret 32 to the second operat ing station.

The flanged and beaded can body A when positionedat the second operating station is broughtinto axial alignment with the drum head inserting and securing mechanism. Previous to the positioning of the can body at thisstation, a drum head or disc D has been brought into the inserting and securinghead by. mechanism which will first be described. Drum head D is brought into the machine upon a horizontal chain conveyor 161 (Figs. 1, 2 and 3). The conveyor chain operates within a groove 162 formed in a channel member 163 secured to bracket 164 mounted upon frame'25. Chain 161 operates over a sprocket 165 mounted-on 'a' shaft 166 carried in the bracket 164. This chain may be a part of an independent machine and is driven in any usual or preferred manner. A series of spaced flights 167, carried bythe links of the chain 161, insure proper travel of the disc D within the channel 163, and as each disc is moved overthesprocket 165 it is projected into a hopper 168 carried by the drum head inserting and securing mechanism. I

As disc D falls from the conveyor chain 161, it strikes against a deflecting plate 169,

positioned on the interior of hopper 168 (see Figs. 12, 13 and 14). Plate 169 causes disc D to assume a substantially vertical position, and as it falls within the hopper 168 it comes to rest upon the forward projection 171 of a feed finger 172 pivoted at 173 on a block 174 secured to the rear wall of hopper 168.

The drum head inserting and securing mechanism comprises a non-rotatable head member 175 secured to the forward end of a sliding shaft 176. Hopper 168 is mounted upon thehead 17 5 and is secured thereto at 177 (Fig. 3).

As head 175 is moved backwardly with the sliding of shaft 176 by mechanism which will be hereinafter described, the upper end of the feed finger 172 strikes against an adjustable screw 178 held in adjusted position by means of'a lock nut 179'upon the bracket 164. A coil spring 181, positioned between the up per end of finger 172 and the block 174, yields at such a time and permits pivoting of the finger 172 about its pivot 173, this action withdrawing the lower extension 171 from within the hopper 168. Disc D thereupon falls'through a slot 182 into a chamber or'pocket'l83 formed in the head 175. In this position, disc D rests within holding fingers 184 pivoted at 185 to head 175, this position being shown in Fig. 13.

There are three holding fingers 184, one resting directly beneath the disc D and two being positioned on opposite sides and central of the said disc. The upper edge of the disc D is prevented from forward displacement by a projection 186 formed on the forward end of a lever 187 pivoted at 188 to the hopper 168 (Fig. 14). The end of lever 187 opposite the projection 186 carries a cam following roller 189 held in upward position by a spring 191 secured at 192 to the hopper 168, the roller 189 resting against the under surface of a cam bar 193adjustably secured as at 194 to the bracket 164 as illustrated in Fig. 3. While head 175 is in its rear position, this being the position of the head when it receives the disc D, the projection 186 is held in front of the upper part of the disc.

From its rearmost position, head 175 is moved toward the positioned can body A resting on the guide rail 29 and held within the turret 32. This movement of head 175 is accomplished by a sliding of shaft 176 within bearings 195 carried by the frame 25 (Figs. 3, 7 and 13). Shaft 176 is held by a clamp block 196 formed on the crosshead 88 opposite block 87 and moves in unison with the crosshead underthe action of cam 92 previously described.

Head 175 carries a number of curling rollers 1 97 loosely mounted on studs 198 radially disposed about the center of the head 17 5, each roller 197 being positioned within a pocket 199 out in the head 17 5 (Figs. 13 and 14). As

head 17 5 moves toward the right (as viewed in Fig. 13) the forward face of the same adjoining the pocket 183 and the forward edges of rollers 197 engage the rear face of the held.outwardly but when finger 208 engages positioned disc 1). The disc thereupon is moved towardgthe positioned can body A.

As head 175 moves the hopper 168 and the parts carriedthereby toward the end of the cam bar-.193, roller 189 engages the forward end ofthe bar and moves upon a cam extremity 201. This causes a lowering of theroller 189 anda corresponding pivoting of the lever 187 against the action of the spring 191. The projection 186 of the; bar 187 is therefore lifted to clear disc D being with the movinghead 175. y

Duringthis forwardv movement of head moved forward 175,:the holding fingers 18 1 aremoved about their pivots 185. to irelease discu fD just prior to ts passing of: the can body.A.

into the open upper end Each finger 1841 (Figs.

1 12 and 13) is provided with a cam extremity a 202 which isengagedduringtheforward I movement of head '17 5 by a fixed finger 203 adjustably held by a screw 204 on a disc-205; secured by a screw 206 to theforward hear ing 195. vl inger 1841 is moved about its pivot 185. or is held in any of its positions by the 203. The position assumed depends. upon the location of: the engaging finger 203relative to the. pivot 185. For eX- ample, when finger 203' engages extremity 2020f finger 18 1, this-bemg back of its pivot, the. forward ends of finger, 184 will be finger 18 1. forward of its pivot, theforward end. of. the latter finger will beheld inwardly. Fig. 12 illustrates this first position and Fig. 13, the second position. i a a y. a

hen a finger 18 1isin the position shown" in Fig. 12, a forward hook 207 thereof :is moved freeof disc. D and also free 'of the canflbody A. .Continuedi forward movement of head 17 5 thereuponlnserts disc-D within the upper end of the can body A and bringsthe outer'edge ofthe" can body "against the curling .rollers 197. The body "Aat.such time is rotatingabout its can own axis by cooperation with a rotating head now to .be described.

. Inaxial alignment with head 175 and positioned at the opposite end of the canbody i A at the second station is a rotating backi 11 ing head 208 carried on the forward extremity of a rotating shaft 209. Head 208 (as illustrated in Fig. is clear of the can body A as itisbrought into position at thelsecond station. Backing head 208 normaliy rotates with" the shaft 209 and as shaft 209 and headf208 are moved toward the can.

body in unison with the forward movement of head 175, a boss 211 carried on the face of the backing head 208:1noves withinhthe bottom end of the positioned can bodyat the same time thatdisoD is moved intothe top end of the same. As head 208 engages tightly within the can body A, the latter starts rotating with the rotation of the head 208. ;ai1df the shaft .209. The head 208 is "will now be described.

221 formed inframe 2%. permits a slid ng of the block 215 along the looselymounted ona stud212 formed in the end of shaft 209 and slips upon the stud until the can body gains suficient momentum to rotate in unison with the shaft 209. This permits an easier action of the parts without damage'to the can body A. i

The mechanisinfor rotating the 209,

Shaft 209 both rotates and slides within bearings 213 formed on the upper end of frame 2A1 (Figs. 3, 8, 9 and 10) and carries a pinion 214C. Pinion 214 meshes w1th the gear 127, thls connection rotating shaft209 in unison with shell 111 of the flanging head.

permits relative sliding movement of. the

mesh.

bearings by means of a cam-controlled device comprising a clamping bloclr 215 loosely "In-ounted'on shaft 209 and positioned between collars 210. Blockfollowing roller 217 greet e218 formed in about the The face of gear is less than the face of gear 127, and this gears without bringing their teeth out of Shaft 209is slid back and forth within its 215 carries a cam operating within the double barrel cam 186.1 The block 215 is held against rotation shaft'208 by a sliding connection with a fined rod 219 held within bearings This construction rod 2 19.but'insuresaproper operating positlon of the cam roller 217 within its cam groove 218. Shaft 209and head 208 are thus rotated and at the same time moved into engagement with the can end A for the drum 5 head inserting operation.

The can body A carried with he ro- 'tating' head 208 turns wlthin the fixed head 1 75and the upper edge thereof being pressed to engagement with the rollers 197 rotates them upon their axes. Inasmuch as thepressure ofthe heads 175 and 208 on the can body edgesi continues after the can body A has engaged therolslers 197, the upper edgethereof isbent inwardly by grooves formed in the 1 rollers, the bending edge forcing against the.

disc B and movingaround into thecurl E. (as illustrated in Fig. 12) This mov the disc against the shoulder B and locks thesame betweenthe shoulder B and the curl E. r

The drumhead inserting and securing mechanism and the rotating backing head and its associated members are thereupon with. drawn from the can body A and moveback can body A forces ing of the disc B inwardly with the curling a of the upper end of the into normal position. The'turret 32 is thereupon given a part rotation and the flanged stood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement oi the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form e einbefore described being merely a pre- 1 r lerred embodiment thereof.

I claim:

1. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier, means for forming a supporting shoulder in one end of the can supporting shoulder in one end ofthe can' body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, means for inserting the positioned drum head within the can body and adjacentthe shoulder, and mechanism for securing the drum head against the can body shoulder.

o. In an a paratus for preparing drum head can bodies,'the combination of a movable can body carrier, means for forminga supporting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, means for inserting the positioned drum head within the can body and adjacent the shoulder, and mechanism for securing the drum head against too can body shoulder, the said can body carrier presenting the can body to the shoulder forming, drum head inserting and drum head securing mechanisms, and holding the same in proper position during the operations or" those mechanlsnis.

4. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier, means for forming a supporting shoulder in one end of the can body, means for forming a flange in the opposite end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, and

means for inserting the positioned drum head within the can body and adjacent the shoulder.

5. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier, means for forming a supporting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, means for inserting the positioned drum head within the can body and adjacent the shoulder, mechanism for securing the drum head against the can body shoulder, and actuating devices for moving the can body carrier, the shoulder forming, drum head inserting and drum head securing mechanisms in proper time relation.

6. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier comprising a pocketed turret, a feed-in chute for positioning a can body into a pocket of the turret, means for forming a supporting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the. can body, and means for inserting the postioned drum head within the can body and adjacent the shoulder.

7. in an apparatus for preparing drum head can bodies, the combination of a movable can body carrier, means'for forming a supporting shoulder in one end of the can body, said means comprising internal and external beading rollers, feeding devices for positionin g a drum head in alignment with the shouldered end of the can body, and means for inserting the postioned drum head within the can body and adjacent the shoulder.

8. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier, means for forming a supper ting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end oi the body, means for inserting the positioned drum head within the can body and adjacent the shoulder, and a holding finger for retaining the drum head in aligned position for said insertion.

9. in an apparatus for preparing drum head can bodies, the combination of a mov able can body carr er, means for forming a supporting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, means for inserting the positioned drum head within the can body and adjacent the shoulder, said inserting means comprising a reciprocating head carrying holding fingers pivotally mounted thereon, said fingers retaining the drum head in aligned position for its insertion, and actuating devices for pivoting the holding fingers and releasing the drum head as said drum head enters within the end of the can body.

10. An apparatus for preparing drum head can bodies, comprising in combination a movable can body carrier, a passageway along which can bodies are conveyed by the carrier. operating stations arranged along the path of travel of the can body and at which can bodies are brought to rest by the said carrier, mechanisms positioned at one station for forming a supporting shoulder in one end of the can body and for forming a flange in the opposite end of the can body as it is held at rest at the station, mechanisms positioned at drum head in alignment with the shouldered end of the can body, and means for inserting the positioned drum head within the can body and adjacent the shoulder.

12. In an apparatus for preparing drum head canbodies, the combination of a movable can body carrier, mea-ns for forming a supporting shoulder in one end of the can body, feeding devices for positioning a drum head in alignment with the shouldered end of the can body, means for inserting the positioned drum headwithin the can body and adjacent the shoulder, said inserting means comprising a reciprocating head, andmechanism for securing the drum head within the can body, said mechanism comprising curling rollers carried by the reciprocating head, said rollers bending the edge of the can body into an annular curl, thereby clamping said drum head between the curl and the shoulder of the can body.

13. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier for receiving a can body from a feed-in chute and transferring it to a station, a drum head feeding device adapted to receive a drum head and positioning it at said station in axial alignment with and adjacent to one end of the can body, and inserting means at said station for inserting the drum head into the end of the positioned can body against an internal shoulder of said body.

14. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier for receiving a can body from a feed-in chute and transferring it to a station, a drum head feeding device adapted to receive a drum head and positioning it at said station in axial alignment with and adjacent to one end of the can body, inserting means at said station for inserting the drum head into the end of the positioned can body, and securing mechanism at said station for curling inward an edge of the can body and securing the drum head within the same while it is positioned at said station.

15. In an apparatus for preparing drum head can bodies, the combination of a movable can body carrier for receiving a can body and transferring it to a station, a beading mechanism at said station for forming a drum head supporting internal shoulder in one end of the can body, said shoulder being smaller than said end of the body, and a flanging mechanism at said station for flanging the opposite end of the can body.

FRED. P. DISTER. 

